The watch's square face, physical buttons, and flexible elastomer wristband closely resemble the company's Blaze. Several Fitbit employees who saw the design are said to have complained about it, according to previous reports.
Specifications of the smartwatch, which is said to be codenamed "Higgs" internally, include a color display with 1,000 nits of brightness similar to the Apple Watch Series 2, built-in GPS, heart-rate monitoring, a full-fledged app store, contactless payments, storage for music, Pandora support, and four days of battery life. The $300 watch was previously thought to have an aluminum unibody design that supports swappable watch bands.
The smartwatch was initially said to be launching this spring, but technical problems have reportedly plagued the product and the company is now thought to be aiming for a fall release.
Fitbit is also rumored to be releasing a pair of Bluetooth earbuds similar in design to Apple's BeatsX buds. Codenamed "Parkside" internally, the $150 wireless earbuds will hang around the neck and be marketed as an accessory for the forthcoming smartwatch.
A lot is riding on the success of Fitbit's upcoming products, after the company faced one of its "largest declines ever" in the fourth quarter of 2016, which resulted in layoffs of about 6 percent of its staff. Although the company remained above Apple Watch in the number of units shipped, it has gradually been losing market share to rivals Apple and Xiaomi.